42006557347 has 4 divisors (see below), whose sum is σ = 43361607616. Its totient is φ = 40651507080.

The previous prime is 42006557323. The next prime is 42006557387. The reversal of 42006557347 is 74375560024.

42006557347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42006557347 - 2¹¹ = 42006555299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42006557317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677525088 + ... + 677525149.

It is an arithmetic number, because the mean of its divisors is an integer number (10840401904).

Almost surely, 2^42006557347 is an apocalyptic number.

42006557347 is a deficient number, since it is larger than the sum of its proper divisors (1355050269).

42006557347 is a wasteful number, since it uses less digits than its factorization.

42006557347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355050268.

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 42006557347 in words is "forty-two billion, six million, five hundred fifty-seven thousand, three hundred forty-seven".